*{
    margin: 0;
    padding: 0;
}
body{
    background-color: #f3f5f7;
    height: 3000px;
}
.w{
    
    width: 1366px;
    margin: auto;
}
li{
    list-style: none;
}
a{
    text-decoration: none;
}
.header{
    height: 78px;
    margin: 30px auto;
    background-color: #fff;
}
.logo{
    float: left;
    height: 42px;
    width: 195px;
}
.logo img{
    height: 78px;
    width: 85px;
    margin-left: 100px;
}
.nav{
    float: left;
    margin-left: 60px;
}
.nav ul li{
    float: left;
    margin: 0 15px;
}
.nav ul li a{
    display: block;
    height: 42px;
    line-height: 42px;
    padding:17px  10px;
    font-size: 32px;
    font-family: '楷体';
    color: gray;
}
.nav ul li a:hover{
    border-bottom: 2px solid palevioletred;
    color:palevioletred;
}
.search{
    float: left;
    height:42px ;
    width: 452px;
}
.search p a{
    height: 40px;
    width: 200px;
    padding: 17px 3px ;
    margin-left: 200px;
    font-size: 32px;
    font-family: '楷体';
    color: gray;
    float: left;
}
.search p a:hover{
    border-bottom: 2px solid palevioletred;
    color: palevioletred;
}
.search a img{
    margin-top: 19px;
}
.header .user{
    float: right;
    margin-right: 40px;
}
.user div{
    float: right;
   padding: 17px 3px;
    font-size: 32px;
    font-family: '楷体';
    color:gray;
}
.user img{
    margin-top: 19px;
}
.user div:hover{
    border-bottom: 2px solid palevioletred;
    color: palevioletred;
} 
.banner{
    position: relative;
    height: 888px;
    width: 1366px;
    margin: 0 auto;
    background-image: url(images/8705BBC0292103EC70FDE71FC9303359.jpg);
    background-repeat: no-repeat;
    background-position: center;
    background-size: 1366px 888px;
}
.banner .ys{
    position: absolute;
    float: left;
    height: 200px;
    width: 200px;
    margin-top: 150px;
    margin-left: 120px;
}
.banner .ys img{
    height: 200px;
    width: 200px;
}
.banner .ys1{
    position: absolute;
    float: left;
    height: 100px;
    width: 100px;
    margin-top: 200px;
    margin-left: 169px;
}
.banner .ys1 img{
    height: 100px;
    width: 100px;
}
.banner .h{
  position: absolute;
    width: 470px;
    height: 135px;
    margin-top: 588px;
    margin-left: 530px;
}
.h ul li{
    float: left;
    margin-right: 9px;
    margin-top: 7.5px;
}
.h ul em img{
    margin-top: 9.5px;
}
li img:hover{
    transform: scale(1.5,1.5);
}
em img:hover{
    transform: scale(1.5,1.5);
}
.banner .g{
    float: right;
    width: 148px;
    height: 190px;
    margin-top: 600px;
    margin-right: 40px;
}
.banner .button{
    position: relative;
    height: 76px;
    width: 356px;
    margin:0px 505px 0px 505px;
}
.d img{
    position: absolute;
    height: 76px;
    width: 356px;
    margin-top: 350px;
    
}
 .j img{
    position: absolute;
    height: 55px;
    width: 55px;
    border-radius: 27.5px;
    margin-left: 150px;
    margin-top: 360px;
}
